1470221 has 4 divisors (see below), whose sum is σ = 1495200. Its totient is φ = 1445244.

The previous prime is 1470199. The next prime is 1470233. The reversal of 1470221 is 1220741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1220741 = 37 ⋅32993.

It is a cyclic number.

It is not a de Polignac number, because 1470221 - 2¹⁰ = 1469197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1470221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1470241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12401 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (373800).

2^1470221 is an apocalyptic number.

It is an amenable number.

1470221 is a deficient number, since it is larger than the sum of its proper divisors (24979).

1470221 is an equidigital number, since it uses as much as digits as its factorization.

1470221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24978.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1470221 is about 1212.5267007369. The cubic root of 1470221 is about 113.7088342769.

Adding to 1470221 its reverse (1220741), we get a palindrome (2690962).

The spelling of 1470221 in words is "one million, four hundred seventy thousand, two hundred twenty-one".